zynqmp: pm: Add support for PS and system reset on WDT restart

Add ability to support PS and System reset after idling the APU,
by reading the restart scope from the PMU.

Signed-off-by: Will Wong <willw@xilinx.com>
Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Change-Id: I23c01725d8ebb71ad34be02ab204411b93620702
2 files changed